Boring machine



Dec. 7 1926. 1,609,828

H. M. LAMBERT BORING MACHINE Filed J uly 2, 1924 2 Sheets-Sheet l ATTORNEY Dec. 7 1326. 1,609,828

4 H. M. LAMBERT BORING MACHINE Filed July 2. 1924' 2 Sheets-Sheet 2 v s. .e. E. 2i 50 51 42;; 57 24 i 5 INVENTOR T 47 #611 M. Lambert 46 50 I BY i 47 f-JiqiG.

ATTORNEY PAq'l'EhlT QEFICE.

HENRY IKE. LAMBERT, F JiBEE-T TIRE 85 E'UBBER ('10., OFBABBER'EON, GLIO, A COR. -RIZONA.

BORING MACHINE.

Application filed July 2, 1924. Serial No; 723,787. The invention generally relates to boring Figure 8 is a detail cross. section of the machines and more particularly to that class ring part shown in Figure 7, one of the seof such machines in which means provided curing clamps being also shown.

for boring a plurality of holes simultane- Figure 9 isa side elevation, par-ts being ugly, broken away and in section, showing the re- The invention. generally seeks to provide a movable boring sleeve feature. machine of the type stated particularly I Figure 1 0 is a detail perspective view illusadapt-able to use-in boring the annularly artratmg; the end-structure of the core removranged cross holes of the well-known Trubh ing plunger. pruf cushion tires.

The invention fur her seeks to provides the ,means for adjustably securing the ring machine of. the type ted, which is relativeplates to position supported by the uprights.

ly simple and economic of construction, and Incarrying out my invention, 1 utilize whicn is easily operable for the purposeo-f sifour uprights or corner posts 1 which may multaneously boring all of the annularl-y and be either circular or square in cross section closely arranged cross holes of the tires menand embedded in a suitable base 2 to secure tioned, in an efficiently effective manner; the same to the vertical position illustrated. hus contributing greatly to the uniformity :lhe base 2 servesto support a hydraulic cylandeconomy of manufacture of the product lnder 3, and afluid connection #l is provided mentioned. for admitting fluid under pressure, into the 79 In its more detailed nature, the invention b t Om Of the said cylinder, a piston or further comprehendsmeans whereby the maplunger 5 being provided to slidably lit the chinemay be adapted to the boring of cross eyllnder 3 so thatwhen fluid under pressure h l i varied sizes of tires, to provide for is admitted in the connection at it will act the boring of the holes in close relation, f r against the said plunger to lift the same and effectively positioning the tire to be bored, the supporting and lifting table '6 secured for removing the bored plugs, and for waterthereto, as shown. In Figure 1, a tire, reprel b -i ti th boring action, sented by the numeral'l', is shown as resting VJith the above and other objects in View, .3 the liable 6 13051411011 i l" lifted the invention still further resides in those h reby into engagement with the boring 80 novel details of construction, combination lements later described for having: cross and arrangement of partsi all of which will holes bored therethroug'h to form the wellb fi t f lly d rm d, tha b parti larly known Lambert Trublpruf cushion tire. pointed out in theappended' claims, refer- As will later be apparent, the boring eleens-g b i 11 d t th m a i gd x ments are preferably such that they will re in -gi whi h; move plugs from the tire stock in forming Figure 1 is a central vertical cross section he Cross apertures, and it is also preferred or" th machin that the boring action take place prior to Figure 2 is a'horizontal section on the line vulcanization of the built-up tire stock so 2-2 on Figure 1. 7 that the plugs bored'therefrom maybe again 93 Fi 3 i a l i f a ti f th used, although it should he understood that removable ringgear. *the machine may be used to bore the-cross Figure 4 is a detail cross section of th apertures through otherwise completed tire gearpart shown in Flgure 3L bodies.

Figure 5 is a plan view of a portion of the Bearing" portions 8 for surrounding the 95 gear carrying plate. uprights .L to aid in guiding; the movement Figure 6 is a detail cross section of the of "the said table are provided in the on end- ;gea shown in Figure 5. ed ears 9 of that table, and the sand ears are fire 7 is an inverted plan view of a'porconnected by the vertical rod connections 10 lion-oi the plunger securing ring. to the ears 11 of the plunger carrying head Figure 11 1S a detail section illustrating; '60

ring 12. Thus, the table 6 and the ring 12 are joined to move together in spaced relation for a purpose later to be described.

A plate head 13 is secured to the upper ends of the uprights 1 and the said plate is provided with a dependent bearing head 1% which provides a suitable bearing for the rive shaft 15 upon the upper end of which is secured a large bevelled gear 16 to which rotary motion is imparted by reason of having the small bevelled pinion 17, upon the horizontally disposed drive shaft 18, mesh therewith. A 'ear carrying plate 19 is secured to the bottom end of the drive shaft 15 and the said plate is provided with drive lugs 20 adapted to fit into the similarly shaped cut out portions 21 formed on the removable ring gear 22, which is removably connected to the said carrying plate 19 by the slide bolt connections 23, see Figures 1 and 3 to 6 inclusive.

The ring gear 22 is adapted to mesh with the plurality of small pinion gears 24- secured upon the boring elements 25 in the manner and position illustrated in Figures 1 and 2 of the drawings. From the figures referred to, it will be observed hat the said boring elements and pinions are positioned vertically and spaced with their axes in annular formation so as to be in position for effecting the boring of the cross apertures through the tire 7 positioned horizontally as illustrated in the said Figure 1, when the same is elevated into engagement with the said boring elements by the table 6. It will also be observed by reference to the said figures, especially Figure 2, that the pinions 24: are lap arranged so that the axes thereof may be closely adjacent one to another, the said pinions being alternately lapped as shown. This peculiar arrangement of the pinions makes it possible to bore the cross apertures in the tire in closely adjacent relation in the manner desired in tires of the class stated, as exemplified by the well-known Lambert Trublpruf cushion tire.

Suitable bearings are provided for the boring elements 25 in the upper and lower ring plates 26, which are secured together in spaced relation, as at 27, and which have extended ears having be. g agains the uprights 1. Each of the extended cars :48 of one of the plates 26 is supported upon a sup porting bolt 29 which passes through a suit-- able aperture provider therefor in the re spective upright 1 and which includes an upturned and threaded portion adapted to pass through an accommodating aperture in the said ear and t be nut-secured as at 30 so as to support the said rings against displace ment to thereby form a rigid bearing for the said boring elements. lies-t collars 31 may be provided and secured upon the boring sleeves to engage the bearings provided therefor in the plates 26 and positioned between the said plates so as to support the said boring elements and the plnions with which the same are equipped in a rotatable manner against vertical displacement during the her 15; action.

A. tire aligning ring 32 is provided and sustained in a vertically movable manner iiom the lowermost plate 26 through the medium the chain connections 83. The plate is provided with apertures through which the lower ends of theboring elements 25 project and aligning lugs 34. The ring 32 also includes extended ears 35 which engage the uprights 1 so that when the table 6 is elevated to lift the tire 7 into engagement with the boring elements, the centering lugs will engage the rim of the tire to effectively center the same to the desired position so that a perfect boring action may be had.

The boring elements 25 are in the nature of hollow tubes and a core removing plunger 36 is slidably mounted within each said boring element. core plunger securing ring 37 is provided, the inner edge diameter thereof, indicated at 38, being slightly larger than the peripheral diameter of the gear carrying plate 19 so that the said ring 37 may be readily applied over the same without removing it from its connection with the drive shaft 15. Clamps 39 are provided for se curing the ring 37 to tight engagement with the bottom surface of the ring 12, suitable set screw connections 1-0 being provided for that purpose. 7

The ring 3'? is provided with a plurality, one for each plunger and boring element, of depending hubs 41, which are apertured to receive the uppermost ends of the plunger-s 36, set screws 12 being provided for securing the said plunger ends within the said hubs. Thus, it will be seen that the plunger-s are connected, through. the rings 37 and 12 and the clamps 39 and the rod connections 10, with the table 6, so that the said connections and the plung-ers will be moved in unison with the said table. The ring 37 is provided with an annular water trough 18, and a water trough M is provided on thering 12, communicating apertures being provided in the ring 12 to effect water communication from the trough 4 into the trough 13 and e hollow of the tubular plungers 36 and i. elements sons to water-lubricate the boring action, it being experienced in practice that in cutting rubber, the cutting action is much more eiticientwhen water-- ubricated.

Obviously, it will be desired to bore cross T-GTtUlCS in varied sizes of tires, and for this ason the radius of the axes of the plunge .nd boring elements must be clian L ive to the radius of tee .or this reason, the ma 3?, plungers pinions 24:, boring elemei'its 2:, ring plate;-:

A 1 AL 26 and the aligning plate 32 and also the ring gear 22 are removable to. be replaced by like equipment of dimensions for effecting the boring of the desired diameter of tire. In other words the parts mentioned are readily removable for replacement.

Operation.

tered thereby, if not so positioned lready.

The gears-'lfiand 17 being active rotar moa V a tlon 1s lmpartcdl to the ring gear 22 and therethrough and through the pinions 24 to theboringelements 25. As the lifting action is continued the boring action progresses,,the centering plate 32 being lif ed with the tire. during such action.

When the. boring. action has been completed, the lifting of' the table 6 will, of course, be sto.pped,I and the table permitted to; descend again to the normal position, it being understood that a suitable wear plate maybe mounted upon the table 6 beneath the tire so that the boring elements 25 will not beinjured when passing through the said tire a slight distance'in completing the boring action.

\Vhile it is possible that the boring elements could be constructed of the auger type, it is preferred to form the cro s apertures-by removing-plugs therefrom and this is accomplished by forming the boring elements tubular so that the plug removed thereby will be forcedup into the said boring elements during the boringaction.

As the table 6 lifts, the tire into engagement with the boring elements 25, it simultaneously effects lifting of the plug removing plungers 36 within the. said boring elements by reason of the connections 1 12, 3? and 42 and when the boring action has been completed and the table again lowered, the plungcrs are likewise lowered and come in contact with the boi'edplugs within the ends of the boring elements and efdectively eject the same therefrom. In Fig all of the drawings isillustrated an enlai fed detail of onesuitable means for supporting the ring plates 36,,the same embodying the bolt and nutconnectionsQQ' and hereinbcfore dcscr-ibed, suitable apertures 443 being provided in'the uprights-l so that the positi n of the said-plates may be adjusted-if desired;

The plugv engaging ends of the plungers 3G may be, hit shaped, as at 4 if desired, see Figure'IO of the drawings.-

While it would be practical to construct the boring. elements in the manner illus trated in the figures of the drawings referred to, it may he found very desirable to provide boring sleeves readily removable from the boring elements and I have illustrated one means of providing such a feature in'Fi ge ure 9 of the drawings, in which the lower end of the boring element 25' is shown provided Wlbll a pin 428 adapted to connect with the bayonet slot L9 of a boring sleeve 50, which may be'thereby readily attached to or removed from the said boring element for the purpose of sharpening, cleaning, or the like. In using a boring sleeve such as described, it should he understood that the bayonet slot 49 will be directed in consideration of the direction of rotation of the boring elements 25 so that disengagement of the parts duringboring action would not be possible.

In the drawings, 1 have illustrated one embodiment of the various features of the invention and it is to be understood that various changes of structure and details of arrangement may be made without departing from the scope of the invention as pai ticularly pointed out in the appended claims, and it is believed that from the disclosure of these drawings and the detailed description, the principles of the inventiominanner of arrangement of the cooperative parts, the manner of operation, and the. advantages thereof will be readily apparent to those skilled in the art towhich it relates.

What I claim is: p

1. In a tire boring machine, a plurality of boring elements, power transmission means for rotating the boring elements simultaneously, means for changing the relative pos tions of the thing to be bored and the boring elements to effect the boring action, and means for delivering water lubricant simultaneously through the several cutting elements to their cutting ends.

2. In a machineof the class described, a plurality of boring elements, power trans-- mis ion means for rotating the boringelcments, means for lifting the thing to be bored into engagement with the boring elements to cause the same to bore plugs there from, and means movable with saidllifting means and active on the lowering or return movement of the-lifting means for ejecting the plugs from the ends of the boring elements.

3. In a machine of the character described, a plurality of boring elements, pinions mounted thereon, a gear carrying plate, a ing gear for enga ng all of the pinions to impart rotation to the boring elements simultaneously, means removably mounting the driving gear upon sail carryin plate, means for driving said carrying plate, and means for changing the relative positions of the thing to be bored and the boring elements to effect the boring action.

4. In a machine of the class described, a plurality of boring elements, pinions mounted on the boring elements and lap arranged to permit close relation, a driving gear for engaging all of the pinions to impart rotation to the cutting elements simultaneously, the said driving gear having driving lugs, a carrving plate having driving'lugs for engaging those of the driving gear and slide bolts for securing the said gear thereto, a driving shaft for carrying and rotating the carrying plate, and means for changing the relative positions of the thing to be bored and the boring elements to effect the boring action.

5. in a machine of the class described, a plurality of tubular boring elements, pin ions mounted on the boring elements and lap arranged to permit close relation, a driving gear for engaging all of the pinions to impart rotation to the cutting elements simultaneously, means for lifting the thing to be bored into engagement with the boring elements to cause the same to bore plugs therefrom, and plungers movable centrally by and with the lifting means through the boring elements and active during the re turn movement of the means for lifting the thing to be bored for removing the plugs from the ends of the boring elements.

6. In a machine of the class described, a plurality of boring elements, pinions mounted on the boring elements and lap arranged to permit close relation, a driving gear for engaging all of the pinions to impart rotation to the cutting elements simultaneously, means for lifting the thing to be bored into engagement with the boring elements to cause the same to bore plugs therefrom, plungers connected to and moved by the lift ing means and movable centrally througi the boring elements and active during the return movement of the lifting means for removing the plugs from the ends of the boring elements, and means for passing water into the boring elements through said plungers to water-lubricate the working ends of the boring elements.

7. In a machine of the class described, a plurality of boring elements, power transmission means for rotating the boring elements, means for lifting the thing to be bored into engagement with the boring elements to cause the same to bore plugs therefrom, plungers connected with and movable by the lifting means and movable centrally through the boring eleme ts and active during the return movement of the lifting means 7 for ren'ioving the plugs from the ends of the i elements, and means for passing water into the boring QlHlBI1 LS and plunger-s to water-luln'icatc the working ends of the boring elements.

8. In a machine of the class described, a plurality of boring elements, power transmission means for rotating the boring elements, means for lifting the thing to be bored into engagement with the boring elements to cause the same to bore plugs therefrom, means for centering the thing to be bored effective during the lifting action, and means connected to move with said lifting means and active on the lower or return movement of the lifting means for removing the plugs from the ends of the boring ele rents.

9. In a machine for boring rubber tires and the like, a plurality of boring elements, power transmission means for rotating the boring elements, means for lifting the thing to be bored into engagement with the boring element to cause the same to bore plugs om, means for centering the thing to be bored etl'ective during the lifti action,

lv movahle plate having centering lugs and tlirc' 'h which the boring elements proest. n .,eans associated with and active on the lowering or return movement of the lifting means for removing the plugs from the ends of the boring elements.

10. In a machine of the class described, a plurality of boring elements, power transmission means for rotating the boring eleincnts, means for lifting the thing to be bores into engagement with the boring ele ments to cause the same to bore plugs therefrom, plungers movable centrally through the boring elements, associated with and active during the return movement of the lift ing means for removing the plugs from the .s of the boring elements, the said plung and the said lifting means being connected to lift and lower in unison.

11. In a machine ofthe class described, a plurality of annularly-vertically arranged tubular cutting elements, a table for lifting the tire into engagement with the cutting elements, rings for carrying and providing bearings for the cutting elements, supports upon which the rings are removably mounted and for guidi I movement of the table, pinions on the boring elements and lap arranged to permit close rotation and a driving gear for eng" wring all of the pinions to impart rotation to the cutting elements si n'iul'taneously.

12. In a machine of the class described, a plurality of annularly-vertically arranged tubular cutting elements, a table for lifting the tire into engagement with the cutting elements, rings for carrying and providing bearings for the cutting elements, supports upon which the rings are removably mounted and for guiding movement of the table, pinions on the boring elements and lap arranged to permit close relation, a driving gear for engaging all of the pinions to imsaid centering means comprising a ver-' partirot-ationto the cutting elements simultaneously, and means for 'centering the tire relativeqtothe cutting elements and effective duringthe lifting action.

13. In a-machine of the class described, a plurality of tubulan cutting elements, a table for lifting thetire intoengagement with the cutting elements, rings for carrying and providing bearings for the cutting-elements, supports upon which the rings are removably-mounted and for guiding movement of the table, pinions on the boring elements, a driving gear for engaging all of the pinions to impart rotation to the cutting ele ments simultaneously, means for centering thetire relative tot-he cutting elements and effective during the lifting action, the said centering means comprising a plate suspended vertically-movably from the said rings and having centering lugs and apertures through which the cutting elements project. v

.14. In a machine of-the class described, a plurality of tubular cutting elements, a table for lifting the tire into engagement with the cutting elements, rings for carrying and providing bearings for the cutting elements, supports upon which the rings are removably mounted and for guiding movement of the table, pinions on the boring elements, a drivinggear for en aging all ofthe pinions to impart rotation to the cutting elements simultaneously, the said driving gear having driving lugs, a carrying plate having driving lugs for engaging those of the driving gear and slide bolts for securing the said gear thereto, and a driving shaft for carrying and rotating the carrying-plate.

15. In a machine of the class described, a pluralityof tubular cutting elements, a table for lifting the tire into engagement with the cutting elements, rings for carrying and providing bearings for the cutting elements,

supports upon which the rings are removably mounted and for guiding movement of the table, pinions on the boring elements, a driving gear for engaging all of the pinions to impart rotation to the cutting elements simultaneously, and plungers movable centrally through the boring elements and active during the return movement of the lifting table for removing the bored plugs from the ends of the boring elements.

16. In a machine of the class described, a plurality of tubular cutting elements, a table for lifting the tire into engagement with the cutting elements, rings for carrying and providing bearings for the cutting elements, supports upon which the rings are removably mounted and for guiding movement of the table, pinions on the boring elements, a driving gear for engaging all of the pinions to impart rotation to the cutting elements simultaneously, and plungers movable centrally through the boring elements and connected with to move in unison with the table sons to eject the borechplugsfrom the ends of the boring elementsduring 'the return movement of that table.

117. In a'machineofthe class described, a plurality ofitub ular cutting elements, a-table for lifting the tire into engagement "with the cutting elements, rings for carrying and providing bearings for the cutting elements, supports ;upon which the rings are removably mounted and vfor guiding movementof the table, pinions on ithe boring-elements, a driving lgear for engaging all 'of'the pinions to impart rotation to the cutting elements simultaneously, 'hollow' ,plungers movable centrally through the boring elements and connected with to move in unison with the table so as vto eject the bored plugs from the-ends of the boringelements during the return movement of that table, and -means for so connecting the plungers and table including rings to which the plungers are secured and which include water passages through which'water may flow into the hollow iplungers and the boring elements to water-lubricate the boringiaction.

18. In a machine of the class described, a plurality of tubular cutting "elements, -a

table vfor lifting the tire into engagement 7 with the cutting elements, rings for carrying and providing bearings for the cutting elements, supports upon -which the rings :are removahlymounted and for guiding movement of the table, pinions on the boring elements, .a .tlriving gear for engaging all of the ,p'inions'to imp art rotation to the cutting elements simultaneously, hollow ejector plungers movable centrally through the boring elements, and means for connecting the plungers and table to move in unison, said means including a carrying ring and a securing ring re'movably secured thereto and to which the said plungers are secured, the said rings having water passages through which water may flow into the hollowplungers and the boring elements to water-'lubricate the boring action.

19. In a machine of the class described, a plurality of tubular cutting elements, atable for lifting the tire into engagement with the cutting elements, rings for carrying and providing bearings for the cutting elements, supports upon which the rings are removably mounted and for guiding movement of the table, pinions on the boring elements, a driving gear for engaging all of the pinions to impart rotation to the cutting elements simultaneously, the said driving gear having driving lugs, a carrying plate having driving lugs for engaging those of the driving gear and side bolt-s for securing the said gear thereto, a driving shaft for carrying and rotating the carrying plate,

hollow plungers movable centrally through the boring elements and connected with to move in unison with the table so as to eject the bored plugs from the ends of the boring elements during the return movement of that table, and means for so connecting the plungers and table including a carrying ring and a securing ring removably secured thereto and to which the said plungers are secured, the said rings having water passages through which water may flow into the hollow plungers and the boring elementsto water-lubricate the boring action.

20. In a boring machine, a tubular boring rod, a tubular bit removably mounted on one end of said rod as an extension thereof, an ejector plunger mounted in said rod and adapted to have longitudinal movement therein and project through the bit, said plunger being of a lesser external diameter than the internal diameter of the bit to leave a space between the same and means for passing water lubricant through the tubular boring rod and the plunger.

In a boring machine, a tubular boring rod, a tubular bit removably mounted on one end of said rod as an extension thereof, an ejector plunger mounted in said rod and adapted to have longitudinal movement therein and project through the bit, said plunger having its active end bifurcated and means for passing water lubricant through the tubular boring rod and the plunger.

22. In a tire boring machine, thecombination with a bed for supporting the tire, a tubular drill for coring out a plug from the tire, means for raising and'lowering the tire supporting bed to bring the tire into and out of association witl said tubular drill and means associated with the movement of the bed away from the drill for ejecting the core removed by the drill.

23. A machine for boring solid rubber tire blanks which comprises atable to receive the tire blanks, a relatively fixed set of boring tools mounted above the table, fixed vertical guides, a boring tool carrier mounted on said guides to sustain said boring tools, a drive shaft with master gear, pinlons on said boring tools to mesh with said master gear, said boring tools comprising hollow spindles, plungers held in said spindles and adaped to project through the same, a,

plunger carrier located above said spindles to which plungers are secured, connectionsbetween said plunger carrier and said table whereby movement of the table toward and from the boring tools will eii ect movement of said plungers whereby as said table is elevated to bring the'tire carcass into operative engagement with said spindles said plungers will be withdrawn from the cutting ends of the spindles and whens-aid table is moved in the opposite direction said plmgers will be moved to eject the'cores 111 the spindles, substantially as shown and described.

2%. A uachine for boring solid rubber tire blanks, which comprises a table to receive the tire blanlr, a relatively fixed set of her ng tools mounted above the table, fixed 'cal guides, a boring tool carrier mount ed on said guides to sustain said boring tools, a drive t with master gear, pinions shar on said bo-ringtools to mesh with said master gear, said boring tools comprising hollow spindles, plungers held in said spindles and adapted to project through the same, a plunger carrier located above said spindles to which said plungers are secured, connections between said plunger carrier and said table whorely movement of the table toward and from the boring tools will effect movement of said plungers whereby as said table is elevated to bring the tire carcass into operative engagement with said spindles said plungers will be withdrawn from the cutting ends the spindles and when said table is moved in the opposite direction said plungers will be moved to eject the cores from the spindles, a centering ring and drill guide slidable on said vertical guides and having centering lugs to engage the tire blank, and means for yieldably suspending said centering ring and drill guide from said drill carrier.

HENRY M. LAMBERT,

having passages for said spindles, said ring 

